Sash-fastener



(Nomodel.)

` G. VAN D. CORNELL.

` SASH FASTBNBR.

Patented Aug. 8,1897.'-

Wl TNESSES 4 rra/Men,

UNTTED STATES PATENT OFFICE.

GEORGE VAN DUYN CORNELL, OF BOUNDy BROOK, llElV JERSEY.

SASH-FASTEN ER.

SPECIFICATION forming part of Letters Patent No. 587,682, dated August3, 1897.

I Application filed October 10, 1896. Serial No. 608,466.l (No model.)

To all whom it may concern:

Be it known that I, GEORGE VAN DUYN CORNELL, a citizen of the UnitedStates, residing at Bound Brook, in the county of Somerset and State ofNew J ersey,have invented certain new and useful Improvements inFastening Devices for lVindow-Sashes, of which the following is a fulland complete specification, such as will enable those skilled in the artto which it appertains to make and use the same.

This invention relates to fastening devices for window-sashes; and theobject thereof is to provide an improved device of this class which issimple in construction and operation, and which is designed to serve asa secure lock, whereby the window-sashes may be held in the closedposition.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings forni a part, in which*- Figure 1 is avertical section of the upper part of the lower sash and the lower partof the upper sash of a window and showing my improved lock or fasteningdevice connected therewith; Fig. 2, a plan view of the constructionshown in Figl; Fig.3, aperspect-ive view of the separate parts of myimproved window-lock or fastening device, and Fig. 4 a transversesection of one of said parts on the line 4 f1 of Fig.

In the drawings forming part of this speciiication I have shown at 5 theupper crossbar of the lower window-sash and at 6 the lower cross-bar ofthe upper sash, and in the the practice of my invention I provide asashlock or fastening device which consists of two parts 7 and S, asshown in Fig. 3.

The part 8 consists of a base-plate 9, which is adapted to be bolted tothe lower cross-bar G of the upper sash, as shown at 10 in Fig. 2,4 andsaid plate is provided at its front edge with a supplemental verticalplate 11, the ends of which are provided with wedge-shaped projections12, the thin ends of which are directed upwardly, and formed in thefront side of said supplemental plate 11 is a transverse hole 13, abovewhich is a groove 14, which is deepest at its upper end and the backwall of which is inclined outwardly to the surface of the plate 11, justabove the hole 13.

The part T of my improved sash-lock comprises a base-plate 15, which isadapted to be screwed or bolted to the upper cross-bar 5 of the lowersash, and formed on the rear edge thereof is a vertical plate 1G, whichis provided with triangular end plates 17, which ,project outwardly andon which are formed inwardly-directed flanges 1S, and secured to on e'end of the plate 16 on the inner side thereof is a springplate 19, tothe back of which is secured a plug or bolt 20, which passes through aslot or opening 21 in the plate 16 and which is adapted to enter thehole 13 in the plate 11 of the part 8.

The spring-plate 19 is secured to the vertical plate 16 by bolts,screws, or rivets 22, and secured to the free end thereof is a knob orhandle 23, and the operation will be readily understood from theforegoing description, when taken in connection with the accompa- Inying drawings and the following statement thereof.

The parts 7 and 8 are secured to the lower and upper sashes,respectively, as shown in Figs. 1 and 2, and when the lower sash islowered to position or closed the pin or bolt 2O or the outer endthereof will enter the groove 14 in the plate 11 and be forced inwardly,the spring-plate 19 'yielding in this operation, as will be readilyunderstood, and when the end of said pin or bolt reaches the hole 13 itwill be forced thereinto by said spring-plate, and the window-sasheswill be securely locked together.

The pin or bolt 20 maybe released from the hole 13 at any time bypulling on the knob or handle 23, and the lower sash may be raised andthe upper sash lowered, and whenever it is desired to lock the sashes inthe closed position the upper sash is raised and the lower sash islowered, as desired, and in this operation the flanges 18 on the endplates 17 of the plate 16 interlock with the wedge-shaped projections 12on the plate 11, and at the same time the pin or bolt 2O operates asabove described, and the sashes are securely locked and at the same timedrawn closely together, so that they cannot he moved vertically and willnot rattle or shake, the rattling or shaking thereof being prevented bythe wedge-shaped projections 12 on the IOO plate 1l andthe-corresponding iianges 1S on the triangular or Wedge-shaped endpieces 17 of the plate 16. A

This device is siinple in construction and operation and is perfectlyadapted to accomplish the result for which it is intended, While beingalso comparatively inexpensive; and it is evident that changes in andmodifications of the construction herein described may be made Withoutdeparting from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, I claim as neur and desire tosecure by Letters Patent- A sash-lock comprising a plate which isadapted to be secured to the upper sash; and which is provided with avertical and longitudinal extension at the ends of which are uprightWedge-shaped projections, and a similar plate which is adapted to besecured to directed extension of the first-named plate,

a knob on said spring-plate, substantially as shown and described.

In testimonythat I claim the foregoing as my invention I have signed mynaine, in presence of the subscribing Witnesses, this 7th day ofOctober, 1896.

GEORGE VAN DUl'N CORNELL.

itnessesz WILLIAM Gg. GILEs, CHARLES E. DUNHAM.

